A multi-viewing zone stereoscopic display device

Abstract

A multi-viewing zone stereoscopic display device is composed of a 2D display panel and a slit grating; the 2D display panel is placed behind the slit grating; the slit grating can project pixels on the 2D display panel to various spatial positions; the pixels on the 2D display panel have various shapes, and pixels with the same shape belong to the same viewing zone; the slit grating is provided with slits of various opening shapes, and the opening shape of each slit corresponds to the pixel shape of each of the above-mentioned viewing zones, respectively, for projecting these pixels; pixels belonging to the same viewing zone and having the same shape can be projected to the corresponding viewing zone position by the slits corresponding to the shape thereof; on the 2D display panel, pixels of the same shape are periodically arranged in columns, and each column of pixels in the period comes from a different parallax image, and different columns of pixels can be projected to different viewpoint positions in the viewing zone, and when the human eye is at different viewing zone positions in the viewing zone, the corresponding parallax image can be seen, thereby generating stereoscopic vision.

Description

Technical Field

[0001] The present invention relates to display technology, and more particularly, to stereoscopic display technology. Background Art

[0002] Stereoscopic display technology is a display technology that can achieve true reproduction of stereoscopic scenes. It can provide different parallax images for human eyes, so that people can have stereoscopic vision. The present invention proposes a multi-viewing zone stereoscopic display device, which can provide multiple viewing zones, each viewing zone is independent of each other, and no image is displayed between the viewing zones. Summary of the invention

[0003] The present invention provides a multi-viewing zone stereoscopic display device. Figure 1 The structure diagram of the multi-viewing zone stereoscopic display device is shown in FIG. 1 , wherein x represents the horizontal direction in space, y represents the vertical direction in space, and z represents the axial direction perpendicular to the xy plane. The multi-viewing zone stereoscopic display device is composed of a 2D display panel and a slit grating. The 2D display panel is placed behind the slit grating. The slit grating can project pixels on the 2D display panel to various spatial positions.

[0004] For further information, please refer to Figure 2 ,The pixels on a 2D display panel have various shapes, and pixels with the same shape belong to the same viewing area.

[0005] For further information, please refer to Figure 3 The slit grating is provided with slits of various opening shapes, and the opening shape of each slit corresponds to the pixel shape of each of the above-mentioned viewing areas, so as to project these pixels respectively.

[0006] For further information, please refer to Figure 1 , pixels belonging to the same viewing area and having the same shape can be projected to the corresponding viewing area positions by the slits corresponding to their shapes.

[0007] Furthermore, on the 2D display panel, pixels of the same shape are arranged periodically in columns, and each column of pixels in the period comes from a different parallax image. Different columns of pixels can be projected to different viewpoint positions in the viewing area. When the human eye is at different viewing positions in the viewing area, it can see the corresponding parallax images, thereby producing stereoscopic vision.

[0008] For further information, please refer to Figure 4 , the light transmittance between slits and pixels of different shapes is low, making it difficult to project. Therefore, please refer to Figure 1In any viewing area, except for the pixels corresponding to this viewing area, other pixels are difficult to project because of their shapes being different from the shapes of the slit openings and having very low light transmittance, so there is less crosstalk; at the positions between viewing areas, there are no pixels matching the shape of any slit, so the light transmittance is very low, and no obvious image is displayed.

[0009] Furthermore, the projection of light rays of pixels of different shapes are independent of each other. Specifically, when the position of a slit with a certain opening shape is changed, only the pixels corresponding to the shape will have their projection direction changed, and the projection directions of pixels of other shapes will not be affected.

[0010] Optionally, the shape of the pixels on the 2D display panel may be formed by combining a plurality of pixels, and the opening on the slit grating matches the shape formed by the combination of the plurality of pixels.

[0011] In summary, the present invention can form multiple viewing zones in space, and the positions of the viewing zones are independent of each other. When the position of one viewing zone changes, the positions of other viewing zones may not be affected, and no image is displayed between the viewing zones. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] Figure 2 Schematic diagram of a pixel of the present invention.

[0015] Figure 3 Schematic diagram of the grating slit of the present invention.

[0016] Figure 4 It is a schematic diagram of slit light transmission of the present invention.

[0017] Icon: 100-2D display panel; 200-slit grating; 101-first viewing area pixel; 102-second viewing area pixel 103-third viewing area pixel; 201-first viewing area grating slit; 202-second viewing area grating slit; 203-third viewing area grating slit.

[0018] It should be understood that the above drawings are only schematic and are not drawn to scale. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0022] In the description of the embodiments of the present invention, it should be noted that the terms “first”, “second”, etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. Example

[0023] Figure 1 This is a schematic diagram of the structure of a multi-viewing zone stereoscopic display device provided in this embodiment, wherein x represents the horizontal direction in space, y represents the vertical direction in space, and z represents the axial direction perpendicular to the xy plane. The multi-viewing zone stereoscopic display device is composed of a 2D display panel 100 and a slit grating 200. The 2D display panel 100 is placed behind the slit grating 200. The slit grating 200 can project pixels on the 2D display panel 100 to various spatial positions.

[0024] For further information, please refer to Figure 2 , the pixels on the 2D display panel 100 have various shapes, and pixels with the same shape belong to the same viewing area. Specifically, this embodiment provides three different pixels, the first viewing area pixel 101 is in the shape of a 45-degree inclined strip; the second viewing area pixel 102 is in the shape of a 135-degree inclined strip; the third viewing area pixel 103 is in the shape of a 90-degree placed strip.

[0025] For further information, please refer to Figure 3The slit grating 200 is provided with slits of three opening shapes, and the opening shape of each slit corresponds to the pixel shape of each viewing zone, so as to project these pixels respectively. Specifically, the opening shape of the first viewing zone grating slit 201 is consistent with the shape of the first viewing zone pixel 101; the opening shape of the second viewing zone grating slit 202 is consistent with the shape of the second viewing zone pixel 102; and the opening shape of the third viewing zone grating slit 203 is consistent with the shape of the third viewing zone pixel 103.

[0026] For further information, please refer to Figure 1 , pixels belonging to the same viewing zone and having the same shape can be projected to the corresponding viewing zone position by the slits corresponding to the shape. Specifically, the first viewing zone pixel 101 can be projected to the viewing zone 1 by the first viewing zone grating slit 201; the second viewing zone pixel 102 can be projected to the viewing zone 2 by the second viewing zone grating slit 202; the third viewing zone pixel 103 can be projected to the viewing zone 3 by the third viewing zone grating slit 203.

[0027] Furthermore, on the 2D display panel, pixels of the same shape are arranged periodically in columns, and the four columns of pixels in the period come from four different parallax images, which can be projected to four different viewpoints in the viewing area. When the human eye is at different viewing positions in the viewing area, it can see the corresponding parallax images, thereby producing stereoscopic vision.

[0028] For further information, please refer to Figure 4 , the light transmittance between the slits and pixels of different shapes is low, making it difficult to project. Specifically, taking the first viewing zone pixel 101 as an example, only the opening shape of the first viewing zone grating slit 201 is the same as its shape, allowing most of the light to pass through, while the opening shapes of the second viewing zone grating slit 202 and the third viewing zone grating slit 203 are different from it, allowing only a small amount of light to pass through.

[0029] Therefore, please refer to Figure 1 In any viewing area, except for the pixels corresponding to this viewing area, other pixels are difficult to project because of their shapes being different from the slit opening shapes and having very low light transmittance, so there is less crosstalk. Specifically, please refer to the third viewpoint from the left in viewing area 2. This viewpoint corresponds to the third viewpoint pixel 103 through the first viewpoint grating 201. Since the light transmittance is low, it cannot be seen. At the same time, this viewpoint corresponds to the first viewpoint pixel 101 through the third viewpoint grating 203. Since the light transmittance is low, it cannot be seen.

[0030] At the position between the viewing zones, there are no pixels with matching shapes through any slit, so the light transmittance is very low, and no obvious image is displayed. Specifically, please refer to the black position between viewing zones 1 and 2, which corresponds to the second viewing zone pixel 102 through the third viewing zone grating 203, corresponds to the third viewing zone pixel 103 through the second viewing zone grating 202, and also corresponds to the third viewing zone pixel 103 through the first viewing zone grating 201. Therefore, the brightness seen through the three grating slits is very low, and no image can be seen.

[0031] Furthermore, the projection of light rays of pixels of different shapes is independent of each other. Specifically, when the position of the grating slit 201 in the first viewing area changes, the positions of the second viewing area and the third viewing area will not change.

[0032] In summary, the present invention can form three viewing zones in space, and the positions of the viewing zones are independent of each other. When the position of one viewing zone changes, the positions of other viewing zones may not be affected, and no image is displayed between the viewing zones.

Claims

1. A multi-viewing zone stereoscopic display device, characterized in that: The multi-viewing zone stereoscopic display device is composed of a 2D display panel and a slit grating; the 2D display panel is placed behind the slit grating; The slit grating can project pixels on the 2D display panel to various spatial positions; the pixels on the 2D display panel have various shapes, and pixels with the same shape belong to the same viewing area; the slit grating is provided with slits of various opening shapes, and the opening shape of each slit corresponds to the pixel shape of each of the above-mentioned viewing areas, so as to project these pixels respectively; Pixels belonging to the same viewing area and having the same shape can be projected to corresponding viewing area positions by slits corresponding to their shapes; On a 2D display panel, pixels of the same shape are arranged periodically in columns. Each column of pixels within the period comes from a different parallax image. Different columns of pixels can be projected to different viewpoints in the viewing area. When the human eye is at different viewing positions in the viewing area, it can see the corresponding parallax images, thereby producing stereoscopic vision; the light transmittance between slits and pixels of different shapes is low, making it difficult to project; the light projection of pixels of different shapes is independent of each other, and when the position of a slit with a certain opening shape changes, only the pixels corresponding to the shape will change in projection direction, and the projection directions of pixels of other shapes will not be affected; the pixel shape on the 2D display panel is composed of multiple pixels, and the opening on the slit grating matches the shape composed of multiple pixels.

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